public function testDeleteHashtagsPostsByHashtagId()
 {
     $this->debug("Begin testDeleteHashtagsPostsByHashtagId");
     $this->hashtagpost_dao->insertHashtagPost('exist_yet', '39089424330978176', 'twitter');
     $this->hashtagpost_dao->insertHashtagPost('exist_yet', '39089424330978177', 'twitter');
     $this->hashtagpost_dao->insertHashtagPost('exist_yet', '39089424330978178', 'twitter');
     $this->hashtagpost_dao->insertHashtagPost('exist_yet', '39089424330978179', 'twitter');
     $res = $this->hashtagpost_dao->getHashtagPostsByHashtagID(1);
     $this->assertEqual(sizeof($res), 4);
     $res = $this->hashtagpost_dao->deleteHashtagsPostsByHashtagID(1);
     $res = $this->hashtagpost_dao->getHashtagPostsByHashtagID(1);
     $this->assertEqual(sizeof($res), 0);
     $this->debug("End testDeleteHashtagsPostsByHashtagId");
 }